body{
	padding:0px;
	margin:0px;
	height:100%;
	width:100%;
}
#titleDiv{
	height: 30px;
	background-color: #000000;
	/*div半透明 ie */
	filter:alpha(opacity=70);
	/*半透明 chrome*/
	opacity: 0.7;
}
#centerDiv{
	width: 1000px; 
	height: 30px;
}


